On Absolute Stability and Semi-Active Control of a Magnetorheological Fluid Vibration Suppression System

Ganesh B. Maganti, University of Nevada, Las Vegas
Sahjendra N. Singh, University of Nevada, Las Vegas
Woosoon Yim, University of Nevada, Las Vegas

Systems Engineering, 2005. ICSEng 2005. 18th International Conference on 16-18 Aug. 2005


This paper treats the question of absolute stability and control of a two degree-of-freedom vibration suppression system. For the position control and vibration suppression of the payload, a magnetorheological (MR) fluid damper is chosen. First, it is shown that for any arbitrarily time varying input current, the system is absolutely stable. Then a nonlinear inverse (feedback linearizing) control law is designed.